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    <title>Document</title>
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<body>
    <div class="container">
        <div biaoti>
            <h1>我的第一个Bootstrap页面</h1>
            <p>重置窗口大小，查看响应式效果！</p>
        </div>
        <div class="row">
            <div class="col-sm-4 col-lg-3">
                <h3>第一列</h3>
                <p>学的不仅是技术，更是梦想！</p>
                <p>再牛逼的梦想，也抵不住你的坚持！</p>
            </div>
            <div class="col-sm-4 col-lg-3">
                <h3>第二列</h3>
                <p>学的不仅是技术，更是梦想！</p>
                <p>再牛逼的梦想，也抵不住你的坚持！</p>
            </div>
            <div class="col-sm-4 col-lg-3">
                <h3>第三列</h3>
                <p>学的不仅是技术，更是梦想！</p>
                <p>再牛逼的梦想，也抵不住你的坚持！</p>
            </div>
            <div class="col-sm-4 col-lg-3">
                <h3>第四列</h3>
                <p>学的不仅是技术，更是梦想！</p>
                <p>再牛逼的梦想，也抵不住你的坚持！</p>
            </div>
        </div>
    </div>
</body>
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